<template>
    <div class="app-container">



         <!-- 顶部 Header区域 -->
        <mt-header fixed title="VUE项目实践">
            <span to="/" slot="left" @click="goBack" v-show="flag">
                <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>

        <!-- 中间的路由 router-view 区域 -->
        <transition>
            <router-view></router-view>
        </transition>

        <!-- 底部的 Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
        
        
        
    </div>
</template>


<script>
export default{
    data () {
        return {
           flag:false 
        }
    },
    created () {
       this.flag = this.$route.path === '/home'?false:true
    },
    methods:{
        goBack(){
            this.$router.go(-1)
        }
    },
    watch:{
       '$route.path':function(newVal){
           if(newVal === '/home'){
               this.flag = false
           }else{
               this.flag = true;
           }
       }
    }
}
</script>

<style lang="scss" scoped>
.mint-header{
    z-index: 999;
}
.app-container{
    padding-top: 40px;
    overflow-x: hidden;
    padding-bottom: 50px;
}
.v-enter{
    opacity: 0;
    transform: translateX(100%);
}
.v-leave-to{
    opacity: 0;
    transform: translateX(-100%);
    position: absolute;
}
.v-enter-active,
.v-leave-active{
    transition: all 0.5s ease;
}
//改类名解决 tabbar 点击无法切换的问题
.mui-bar-tab .mui-tab-item1.mui-active {
    color: #007aff;
}
.mui-bar-tab .mui-tab-item1{
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item1 .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item1 .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>
